EP0667458A1 - Unité de soupape à aimant proportionnel - Google Patents

Unité de soupape à aimant proportionnel Download PDF

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Publication number
EP0667458A1
EP0667458A1 EP95100335A EP95100335A EP0667458A1 EP 0667458 A1 EP0667458 A1 EP 0667458A1 EP 95100335 A EP95100335 A EP 95100335A EP 95100335 A EP95100335 A EP 95100335A EP 0667458 A1 EP0667458 A1 EP 0667458A1
Authority
EP
European Patent Office
Prior art keywords
housing
valve
valve unit
unit according
valve housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95100335A
Other languages
German (de)
English (en)
Other versions
EP0667458B1 (fr
Inventor
Bernd Niethammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Hilite Germany GmbH
Original Assignee
HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Hydraulik Ring GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH, Hydraulik Ring GmbH filed Critical HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Publication of EP0667458A1 publication Critical patent/EP0667458A1/fr
Application granted granted Critical
Publication of EP0667458B1 publication Critical patent/EP0667458B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B13/0442—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with proportional solenoid allowing stable intermediate positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/041—Valve members; Fluid interconnections therefor with two positions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86879—Reciprocating valve unit

Definitions

  • the invention relates to a proportional solenoid valve unit according to the preamble of claim 1.
  • valve housing is sealed with sealing rings in the receiving space of the installation housing.
  • valve housing has a threaded bore at its end facing the electromagnet, into which a threaded part of the electromagnet is screwed.
  • the unit connected in this way consisting of the valve housing and the electromagnet, is secured with a holding plate and fastened on the installation housing. So that the sealing rings of the valve housing are not damaged during installation in the installation housing, insertion bevels must be provided at the end of the receiving space of the installation housing. This requires additional process steps in the production of this receiving space.
  • the valve housing must also be provided with grooves for inserting the sealing rings in complex work steps. The tapped hole also requires complex and expensive production.
  • the invention has for its object to design the generic proportional solenoid valve unit so that it consists of only a few components, which are standard components as possible and which can be easily and inexpensively manufactured and assembled.
  • the receiving space of the installation housing has a constant diameter over its length.
  • this receiving space can be produced in a single process step, for example by drilling.
  • the receiving space has no steps or threads. Therefore, the valve housing can be provided with a smooth outer wall, which bears sealingly against the inner wall of the receiving space of the installation housing. Additional sealing rings are not required. Rather, the seal is ensured by the overlap between the wall of the receiving space of the installation housing and the valve housing.
  • the valve housing is connected to the installation housing and the electromagnet by means of appropriate flanging, which can be carried out easily.
  • the proportional solenoid valve unit according to the invention thus consists of only a few components that can be manufactured inexpensively and the installation of which does not require any additional method or manufacturing steps. Therefore, the proportional solenoid valve unit according to the invention can be manufactured and assembled extremely inexpensively.
  • the proportional solenoid valve unit is used to control or regulate a unit (not shown).
  • a unit can be, for example, a piston-cylinder unit, which is part of a power steering system of a motor vehicle, for example.
  • the proportional solenoid valve unit has an electromagnet 1, which is designed in a known manner and is therefore not described in detail. It has a plunger 2 (FIG. 2) which is displaced in the axial direction when the electromagnet 1 is energized. With the plunger 2, a piston 3 is moved against the force of a compression spring 4. The piston 3 and the compression spring 4 are accommodated in a valve housing 5, which in turn is arranged in an installation housing 6.
  • the installation housing 6 has a continuous receiving opening 7 which has a constant diameter over its length. As a result, this receiving opening 7 can be produced very easily in a single step.
  • the valve housing 5 can be inserted very easily into this receiving opening 7. It lies with its cylindrical wall 8 on the opening wall.
  • the installation housing 6 has on its side facing away from the electromagnet 1 an annular projection 9, which is penetrated by the receiving opening 7.
  • the valve housing 5 projects axially over the annular projection 9.
  • the valve housing 5 has no grooves on its outer wall 8 for inserting sealing rings.
  • the seal between the installation housing 6 and the valve housing 5 is achieved solely by the overlap between the wall of the receiving opening 7 and the outer wall 8 of the valve housing 5.
  • the valve housing 5 has two working connections 10 and 11 and one between them the pressure connection 12.
  • the installation housing 6 has bores adjoining the work connections 10, 11, of which only the bore 13 adjoining the work connection 10 is shown in FIG. 2.
  • the pressure connection 12 is connected via a bore (not shown) in the installation housing 6 to the hydraulic system pump, also not shown.
  • the hydraulic medium is supplied via the pressure connection 12 and, depending on the position of the piston 5, is supplied to the working connection 10 or the working connection 11.
  • the valve housing 5 has an annular groove 14 on the outside near its end facing away from the electromagnet 1, into which the projection 9 of the installation housing 6 engages with a corresponding flange 15.
  • the projection 9 has a wall thickness such that the flange 15 can be attached simply after the valve housing 5 has been inserted into the receiving opening 7 of the installation housing 6. In this way, the valve housing 5 and the installation housing 6 can be connected to one another very easily.
  • the valve housing 5 has a thin-walled, sleeve-shaped projection 16 which surrounds a cylindrical connecting part 17 of the electromagnet 1.
  • the cylindrical projection 16 is flanged obliquely inwards and thus engages over the connecting part 17, which is conical in this area. It is also possible to provide the cylindrical projection 16 of the valve housing 5 with projecting tongues distributed over its circumference, which are bent obliquely inwards. In this way too, a simple, form-fitting connection acting in the axial direction can be established between the electromagnet 1 and the valve housing 5.
  • the projection 16 protrudes from an end face 18 of the valve housing 5, against which the connecting part 17 rests and which is penetrated by a central bore 19 in the valve housing 5.
  • the plunger 2 of the electromagnet 1 projects into the bore 19 and lies against the end face of the piston 3.
  • the piston 3 is mirror-symmetrical to its transverse central plane, so that it is not necessary to pay attention to its position when it is installed in the valve housing 5.
  • the piston 3 has two ring webs 20 and 21 spaced apart from one another, the width of which is slightly larger than the width of the working connections 10 and 11. In the middle position of the piston 3 shown in FIG. 2, the two working connections 10 and 11 are thereby through the ring webs 20, 21 of the piston 3 closed.
  • the valve housing 5 is provided with an axially projecting cylindrical projection 22. Axial incisions "are made in it to form plastically deformable tongues 23. As a result, the tongues 23 can be deformed radially inward. The tongues 23 serve to axially secure the compression spring 4. The tongues 23 can be bent in such a way by varying the amount of plastic deformation that the compression spring 4 has the pretensioning force required for the respective application.
  • the piston 3 is to assume the central position shown in FIG. 2 at a predetermined current intensity with which the electromagnet 1 is acted upon. In this central position, the working connections 10, 11 of the valve housing 5 are closed by the two ring webs 20, 21 of the piston 3.
  • the corresponding current intensity is applied to the electromagnet 1, as a result of which the plunger 2 extends correspondingly axially out of the electromagnet 1 and shifts the piston 3 to the right in FIG. 2.
  • the tongues 23 are now plastically bent inward until the annular webs 20, 21 of the piston 3 close the working connections 10, 11.
  • the valve unit can be set very easily during assembly, yet very precisely, so that the working connections are also reliably closed at the appropriate amperage.
  • the tongues 23 thus not only secure the compression spring 4 in its installed position, but at the same time also serve as adjusting means in order to adjust the valve unit to the corresponding current strength of the electromagnet in the manner described. While in the conventional valve housings for the axial support of the compression spring 4 an adjusting screw is required and a corresponding thread has to be produced, the adjusting screw and the production of a thread are omitted in the valve housing described. With this valve unit, an expensive component and a complex and accordingly expensive production are thus avoided, without this having an adverse effect on the functionality and in particular the setting of the valve unit.
  • the valve unit described with the electromagnet 1 can be inexpensively manufactured, assembled and installed in the installation housing 6 simply and inexpensively from very few components. In particular, there are no complex and expensive process steps in the manufacture of the built-in housing 6 and the valve housing 5 required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Servomotors (AREA)
EP95100335A 1994-02-10 1995-01-12 Unité de soupape à aimant proportionnel Expired - Lifetime EP0667458B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9402205U 1994-02-10
DE9402205U DE9402205U1 (de) 1994-02-10 1994-02-10 Proportionalmagnet-Ventileinheit

Publications (2)

Publication Number Publication Date
EP0667458A1 true EP0667458A1 (fr) 1995-08-16
EP0667458B1 EP0667458B1 (fr) 1998-07-29

Family

ID=6904398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100335A Expired - Lifetime EP0667458B1 (fr) 1994-02-10 1995-01-12 Unité de soupape à aimant proportionnel

Country Status (4)

Country Link
US (1) US5487410A (fr)
EP (1) EP0667458B1 (fr)
JP (1) JPH07224964A (fr)
DE (2) DE9402205U1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634319A1 (de) * 1996-08-24 1998-02-26 Bosch Gmbh Robert Elektrohydraulische Steuervorrichtung
DE19727180C2 (de) * 1997-06-26 2003-12-04 Hydraulik Ring Gmbh Hydraulisches Ventil, insbesondere zur Steuerung einer Nockenwellenverstellung in einem Kraftfahrzeug
US5984259A (en) 1997-11-26 1999-11-16 Saturn Electronics & Engineering, Inc. Proportional variable force solenoid control valve with armature damping
FR2817605B1 (fr) * 2000-12-01 2005-05-20 Eaton Corp Electrovanne proportionnelle pour circuit de liquide de refroidissement de moteur
JP2011077355A (ja) * 2009-09-30 2011-04-14 Keihin Corp リニアソレノイド及びそれを用いたバルブ装置
CN101691890B (zh) * 2009-10-13 2011-08-31 金仁召 一种节流阀

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917418A1 (de) * 1989-05-29 1990-12-06 Vickers Systems Gmbh Elektro-hydraulisch bewegbares steuerventil
US5218999A (en) * 1990-05-17 1993-06-15 Mitsubishi Denki K.K. Solenoid valve
US5259414A (en) * 1988-11-09 1993-11-09 Aisin Aw Co., Ltd Pressure control valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282379B (de) * 1965-11-04 1968-11-07 Danfoss As Ventil
JPH02129476A (ja) * 1988-11-09 1990-05-17 Aisin Aw Co Ltd 圧力調整弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259414A (en) * 1988-11-09 1993-11-09 Aisin Aw Co., Ltd Pressure control valve
DE3917418A1 (de) * 1989-05-29 1990-12-06 Vickers Systems Gmbh Elektro-hydraulisch bewegbares steuerventil
US5218999A (en) * 1990-05-17 1993-06-15 Mitsubishi Denki K.K. Solenoid valve

Also Published As

Publication number Publication date
EP0667458B1 (fr) 1998-07-29
US5487410A (en) 1996-01-30
DE9402205U1 (de) 1994-04-28
JPH07224964A (ja) 1995-08-22
DE59502938D1 (de) 1998-09-03

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